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Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when
From: |
Benjamin Herrenschmidt |
Subject: |
Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set |
Date: |
Sat, 09 Jul 2016 12:46:51 +1000 |
On Sat, 2016-07-09 at 01:43 +0100, Mark Cave-Ayland wrote:
> On 01/07/16 07:41, David Gibson wrote:
>
> > From: Benjamin Herrenschmidt
> >
> > The architecture specifies that any instruction that sets MSR:PR will also
> > set MSR:EE, IR and DR.
.../...
> Unfortunately this patch causes a regression and breaks booting OS 9 and
> OS X under qemu-system-ppc.
Any idea what is breaking specifically ? The architecture is pretty clear
here, could it be that they rely on old implementations allowing the
incorrect combination ?
Maybe we can make the restriction 64-bit server only...
Cheers,
Ben.
- [Qemu-ppc] [PULL 00/23] ppc-for-2.7 queue 20160701, David Gibson, 2016/07/01
- [Qemu-ppc] [PULL 10/23] spapr: fix write-past-end-of-array error in cpu core device init code, David Gibson, 2016/07/01
- [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set, David Gibson, 2016/07/01
- Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set, Mark Cave-Ayland, 2016/07/08
- Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set,
Benjamin Herrenschmidt <=
- Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set, Benjamin Herrenschmidt, 2016/07/08
- Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set, Benjamin Herrenschmidt, 2016/07/08
- Re: [Qemu-ppc] [PULL 05/23] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set, Benjamin Herrenschmidt, 2016/07/08
- [Qemu-ppc] [PATCH] ppc: Fix support for odd MSR combinations, Benjamin Herrenschmidt, 2016/07/08
- Re: [Qemu-ppc] [PATCH] ppc: Fix support for odd MSR combinations, Benjamin Herrenschmidt, 2016/07/08
- [Qemu-ppc] [PATCH v2] ppc: Fix support for odd MSR combinations, Benjamin Herrenschmidt, 2016/07/08
- Re: [Qemu-ppc] [PATCH v2] ppc: Fix support for odd MSR combinations, Benjamin Herrenschmidt, 2016/07/08
- Re: [Qemu-ppc] [Qemu-devel] [PATCH v2] ppc: Fix support for odd MSR combinations, Mark Cave-Ayland, 2016/07/09
- Re: [Qemu-ppc] [PATCH v2] ppc: Fix support for odd MSR combinations, David Gibson, 2016/07/10
- Re: [Qemu-ppc] [PATCH v2] ppc: Fix support for odd MSR combinations, Mark Cave-Ayland, 2016/07/11